Turkyilmaz Ilser, Patel Neal S, McGlumphy Edwin A
Assistant Professor, Department of Prosthodontics, Dental School at San Antonio, University of Texas Health Science Center, San Antonio, Texas.
Eur J Dent. 2008 Jul;2(3):220-3.
Due to the angulation of maxillary bone as the maxillary bone resorption occurs from a buccal to palatal direction, bucco-lingually tilted implant placement is more likely especially in the posterior maxilla. The aim of this paper was to present a case restored by using a maxillary hybrid denture using Cresco method. A 59-year-old woman with an edentulous maxilla and five missing mandibular teeth was referred for implant treatment. Six months after sinus lift operation, four mandibular implants and six maxillary implants were placed. Due to the bucco-lingual tilt of two implants, the Cresco method was chosen to fabricate the metal framework for the maxillary hybrid denture that was delivered four months after implant placement. The main advantages of the Cresco method are a perfectly passive framework fit and corrected screw access holes. All ten implants placed were considered successful at 1-year recall, and no screw access holes were seen in the buccal part of the maxillary acrylic teeth. It was concluded that such screw-retained maxillary hybrid denture using the Cresco method met the esthetic expectations of a highly demanding patient.
由于上颌骨吸收是从颊侧到腭侧方向进行,会导致上颌骨成角,因此颊舌向倾斜种植体的植入更为常见,尤其是在上颌后牙区。本文旨在介绍一例采用Cresco法制作上颌混合义齿修复的病例。一名59岁女性,上颌无牙,下颌缺失五颗牙齿,前来接受种植治疗。上颌窦提升术后6个月,植入了4颗下颌种植体和6颗上颌种植体。由于两颗种植体存在颊舌向倾斜,因此选择Cresco法制作上颌混合义齿的金属支架,该义齿在种植体植入4个月后交付。Cresco法的主要优点是支架完全被动就位且螺丝通道孔得到矫正。在1年复查时,所有植入的10颗种植体均被认为成功,在上颌丙烯酸树脂牙的颊侧未见螺丝通道孔。得出的结论是,采用Cresco法的这种螺丝固位上颌混合义齿满足了要求极高的患者的美学期望。